Results 21 to 30 of about 2,258 (200)
Current limiting and negative differential resistance in indium oxide based ceramics [PDF]
Indium oxide based ceramics with bismuth oxide addition were sintered in air in the temperature range 800-1300 ºC. Current-voltage characteristics of In2O3-Bi2O3 ceramics sintered at different temperatures are weakly nonlinear.
A.B. Glot +41 more
core +1 more source
للسيراميك استخدامات عديدة علي نطاق واسع في مجال الكهرباء (الالكترونيات). ويتسع مدى هـذه الاستخدامات ليشمل الوقاية من خطر الجهد باستخدام الفارستور (Varistors) إلى مقاومات الفارستور (Varistors) ذات درجة الحرارة الموجبة إلى العوازل السيراميكية ...
D. E. Ibrahim, Osama Desouky
doaj +1 more source
Simulation research on space charge characteristics of zinc oxide varistor
Zinc oxide (ZnO) lightning arresters have good protection performance and have been widely used in power systems. ZnO varistor is the core component of the arrester, and its electrical performance determines the overvoltage protection level of the ...
Qian Wang, Ruonan Zhang, Chenjie Ji
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Comparative Characterization of Different Cutting Strategies for the Sintered ZnO Electroceramics
Sintered zinc oxide (ZnO) ceramic is a fragile and difficult-to-cut material, so finishing operations demand handling cautious and accurate surface tolerances by polishing, grinding, or machining.
Jaka Dugar, Awais Ikram, Franci Pušavec
doaj +1 more source
The degradation of the epoxy resin-coated commercial ZnO varistors at elevated temperatures and ambient humid conditions has been investigated experimentally.
Jianying Li +3 more
doaj +1 more source
Influence of processing on microstructure and electrical characteristics of multilayer varistors
The paper reports on the influence of processing on microstructure and electrical properties of multilayer varistors based on zinc oxide doped with Bi2O3, Sb2O3, Co2O3, MnO, Cr2O3, B2O3, and SiO2.
D. Szwagierczak, J. Kulawik, A. Skwarek
doaj +1 more source
Influence of Fine Crystal Percentage on the Electrical Properties of ZnO Ceramic-Based Varistors
Herein, the effect of nanocrystal percentage in bulk-ZnO varistors was studied. The structure of ZnO nanocrystals was examined using X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM).
Abdullah Aljaafari, Ahmed Sedky
doaj +1 more source
Growth of ZnO nanostructures on Si by means of plasma immersion ion implantation and deposition [PDF]
Crystalline zinc oxide (ZnO) nanostructures have been grown on Si substrates by means of Plasma Based Ion Implantation and Deposition (PIII&D) at temperature of about 300 0C and in the presence of an argon glow discharge. In the process a crucible filled
Oliveira, R. M. +3 more
core +1 more source
DC Aging Mechanism of Co2O3-Doped ZnO Varistors
Lowered power loss and asymmetrically electrical parameters are reported in the DC aging of Co2O3-doped ZnO varistors in this paper. Based on the frequency domain dielectric responses of the pristine and degraded samples, the present study explores the ...
Xia Zhao +5 more
doaj +1 more source
Investigation of Diagnostic Techniques for Metal Oxide Surge Arresters [PDF]
Gapless metal oxide surge arresters(MOSA)have been available in the market for many years since they were first introduced in the 1970's. The aim of this study is to investigate some reliable diagnostic techniques to assess the condition of a metal oxide
Mardira, Karl P. +2 more
core +1 more source

